import java.util.concurrent.atomic.AtomicInteger;

public class Dem1 {
    private static AtomicInteger count = new AtomicInteger();

    public static void main(String[] args) throws InterruptedException {
        Thread t1 = new Thread(() -> {
            for (int i = 0; i <50000; i++) {
                count.getAndIncrement();
            }

        });
        Thread t2=new Thread(()->{
            for (int i = 0; i < 50000; i++) {
                count.getAndIncrement();
            }

        });

        t1.start();
        t2.start();
        t1.join();
        t2.join();
        System.out.println("count="+count.get());

    }
}
